changes the air temperature inside
Automotive air conditioning is the ac unit in your car. It's what "conditions" the air in your car, ie keeping the temperature inside the car cool or warm.
By turning on the air conditioning. Or opening a window. Or parking in the shade.
The air comes from the air outside and the air conditioning system in the car turns this into cold or warm air.
The 1939 Packard was the first car with a true air-conditioning system.
Yes, When the air conditioning is on.
No use for exhaust in car air conditioning
It keeps you cool, and heating is to keep you warm.
jaguars blow, the ac is making the cool air. turn it off, to stop cool the cool air.
Air condition is not cool because it might be leaking. If there are any leaks in an air conditioning system it will not work.
When the car is at idle, the air conditioner works just as hard as when the car is moving. When the car moves, the engine gets very hot. so the air conditioning works better when your at idle because it doesn't have to cool the heat from the engine.
No cars "need" air conditioning. It is a personal preference of the owner. Most people would want air conditioning in their car as an option. Mississippi's hottest day was 115 degrees!